Jul 30, 2014 — Scientists are trying to raise prized bluefin tuna completely in captivity. An experiment at a Baltimore university is the first successful attempt in North America.
Jul 29, 2014 — The Natural Trap Cave in Wyoming may hold specimens of DNA from animals who roamed thousands of years ago. Julie Meachem, a paleontologist leading the expedition into the cave, speaks with Audie Cornish about the secrets she hopes to find.
Jul 28, 2014 — Birds are everywhere, but the greatest concentration of different birds — the "bird mecca" of America — is not in our great parks, not in our forests, not where you'd suppose. Not at all.
Jul 28, 2014 — To withstand their 9,300-mile migration, red knots feast on eggs from horseshoe crabs each spring in Delaware Bay. Scientists worry many crabs are starting to lay eggs before the birds can get there.
Jul 27, 2014 — For the past 25 years, a giant flock of purple martins has gathered in Lake Murray, S.C., in late July. This year, they didn't show up.
Jul 27, 2014 — A researcher has complained that coverage in NPR and other outlets ignores his work and gives undue credit to a sixth-grader's project. But that sixth grader did make an original contribution.
Jul 26, 2014 — Salmon fishing on a scenic river in Alaska isn't always about hooking a big fish in the remote wilderness. Sometimes, it's about standing shoulder-to-shoulder in the water to fill up your freezer.
Jul 25, 2014 — Dr. Christine Harris co-authored a study that examined whether dogs exhibit jealous behavior, hoping to see if jealousy is an emotion unique to humans. Audie Cornish asks Harris: Does it take complex cognitions to trigger the emotion?
Jul 24, 2014 — The plight of the nearly 30-year-old polar bear, who lost his enclosure mate two years ago, has attracted attention from well-wishers the world over who want him moved.
Jul 23, 2014 — Veterinarian Vint Virga works with pets and zoo animals on behavior disorders. He talks about how house cats are more fulfilled when they forage for food, and how to show animals affection.